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Yes, the i7-720qm will support 16GB of RAM as far as i know, my i7-920xm does despite Intel's website saying it supports up to 8GB. For the SSD, of course you can do the swap, you will have to reinstall windows and your programs or clone the HDD to the SSD though.

EDIT: See my last post, seems like the system slows down to a crawl with 16GB.

Unless you are a power user or have special needs, you shouldn't even fill 8GB of RAM.

Click to expand...

Ya true, I run 2/3 instances of VS2012 simultaneously with SQL Server and other softwares. I don't want to give too much pressure on my poor 7200rpm HD Drive. Will consider an SSD but 500GB SSD is too costly, 120GB is too less

Ya true, I run 2/3 instances of VS2012 simultaneously with SQL Server and other softwares. I don't want to give too much pressure on my poor 7200rpm HD Drive. Will consider an SSD but 500GB SSD is too costly, 120GB is too less

Click to expand...

If you do not need the optical drive (and have only one HDD bay), you can always get a caddy to replace the optical, this will allow you to run a dual drive configuration, a SSD + HDD.

A caddy is basically an adapter in the shape of the optical drive that is made to house a HDD instead. Something like this: New SATA 2nd HDD Caddy Module Caddy for Dell XPS 15 L501X L502X 17 L701X L702X | eBay. Since the optical connects using a SATA port, all you need is an adapter that can house the drive and fits in the optical bay. Installing windows can be done using a flash drive instead of a disc and you can also buy an enclosure for the optical you removed to convert it into an external ODD.

A caddy is great if you have no mSATA and want a SSD+HDD configuration in a laptop that doesn't have dual hard drive bays, or you can go with a ridiculous amount of storage on bigger laptops.

G Skill 16gb (8gbx2) ddr3 10666 1333mhz not working on a 1645, but if I put only one module in one of the two slots it works ok. With 16gb installed windows boots but extremely slow, processor is always working at 80-90% with no aparent reason, but both the bios and windows recognizes the 16gb ram.

I'll try the memory in win 8 before returning to the store and post the results.

PS: I have a SSD Cruzial M4 128gb in the main hdd compartment and the samsung 500gb 7200 in the dvd bay. SSD + HDD = awesome perfomance

Maybe motherboard finds this RAM, but processor can use only 8gb because of his limitation, I am just guessing. Someone said that if you want use more than 8gb you need more physical processors on mother board (Like 2 if he runs 16GB). Maybe there is someone who has this 16gb and had tested them, can tell that. Are the all 16 working or max what is used is 8GB of RAM.